Method for addition of low-melting point metal
    1.
    发明授权
    Method for addition of low-melting point metal 失效
    添加低熔点金属的方法

    公开(公告)号:US4686081A

    公开(公告)日:1987-08-11

    申请号:US865472

    申请日:1986-05-21

    IPC分类号: C21C7/00 C22C33/04 C22C33/00

    CPC分类号: C21C7/0006 C22C33/04

    摘要: A method of adding a low-melting point metal (e.g. Pb or Bi) to liquid steel for producing a free-cutting steel in a consistent manner and in high yield of addition is disclosed. In accordance with the method, at least one member selected from said low-melting point metal and an oxide thereof, and at least one member selected from the group consisting of quick lime and a carbonaceous material are mixed in specified optimum proportions and the mixture is blown into the liquid steel through an injection lance. The liquid steel may be agitated while the mixture is added, and the appropriate conditions for the agitation of the steel are also specified.

    摘要翻译: 公开了一种将低熔点金属(例如Pb或Bi)以一致的方式和高产率的添加用于生产易切削钢的液态钢的方法。 根据该方法,从规定的最佳比例混合选自所述低熔点金属及其氧化物中的至少一种,以及选自生石灰和碳质材料中的至少一种,混合物为 通过注射枪吹入液态钢。 在加入混合物的同时可以搅拌液态钢,并且还规定了钢的搅拌的适当条件。